Perhaps you should try some spelling variations:
"indonesia political system" » "indonesia politics system", "indonesia politik system", "indonesian politics system", "indonesia political islam"
"indonesia billing system" » "indonesia bridging system", "indonesia paling system", "indonesia rising system"
"indonesia bidang system" » "indonesia undang system", "indonesia dan system", "indonesia yang system", "indonesia undang sistem"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("indonesia billing system") OR ("indonesia bidang system"))) or ("indonesia political system"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("indonesia billing system") OR ("indonesia bidang system"))) OR ("indonesia political system")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"indonesia billing system\") OR (\"indonesia bidang system\"))) or (\"indonesia political system\"))".
• Removing quotes may allow a broader search: (((( indonesia billing system ) OR ( indonesia bidang system ))) or ( indonesia political system )).
• Adding a wildcard symbol may retrieve word variants: (((("indonesia billing system") OR ("indonesia bidang system"))) or ("indonesia political system"))*.